>Sorry Lutz, but I do not think you do understand how VFP works in this respect. EXECSCRIPT() does not hide public variables or loaded objects or forms. You still can access and use them. Classes that are already loaded into memory can be instantiated with CREATEOJECT(), you can dump memory and analyze what variables have been set and used.
>
>Just an execscript() or a calling a PRG from outside does not give you any protection on accessing resources from inside the executable. There are many, many ways to get at everything in the executable itself.

Sorry Walter, it's to late today. I can not follow you. I have said not a bit other then your last statement, so I do not understand what you are refering to.

Can we agree that a function like the one mentioned opens an extra door? And that one has to know what one is doing and at least to think about side effects?